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1 year ago

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A blue train of mass 50 kg moves at 4 m/s toward a green train of 30 kg initially at rest. What is the initial momentum of the b

lue and green train combined?
A. 20 kgm/s
B. 50 kgm/s
C. 0 kgm/s
D. 200 kgm/s

1 answer:

emmainna [20.7K]1 year ago

4 0

<em>The correct option is</em> D. The initial momentum of the blue and green train combined during the collision is 200 kgm/s.

<h3>Initial momentum of the blue and green train</h3>

Apply the principle of conservation of linear momentum as follows;

Pi = m1v1 + m2v2

where;

m1 is mass of blue train
m2 is mass of green train
v1 is velocity of blue train
v2 is velocity green train
Pi is the initial momentum of the two trains

Pi = (50 x 4) + 30(0)

Pi = 200 kgm/s

Thus, the initial momentum of the blue and green train combined is 200 kgm/s.

Learn more about momentum here: brainly.com/question/7538238

#SPJ1

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